All names: Gaia DR2 3700887144739930624, Gaia DR3 3700887144739930624, 2QZ J121717.7+014221, GALEX J121717.6+014222, Gaia EDR3 3700887144739930624
| Parameter | Unit | Gaia EDR3 | Stilism | Vincent et al. 2024 | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 17 17.67 (0.3) | 12 17 17.67 | 12 17 17.73 (0.3) | ||
| Declination | 01 42 22.38 (0.2) | 01 42 22.38 | 01 42 22.38 (0.2) | ||
| Spectral type | DA | DA | |||
| Effective temperature | [K] | 9295.0 (452) | |||
| log(g) | [cgs] | 7.91 (0.1) | |||
| Mass | [M☉] | 0.547 (0.1) | |||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 4.36 (0.3) | 4.36 | 4.36 (0.3) | |
| Distance | [pc] | 229.32 (15) | 229.32 | 229.32 (15) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -57.313 (0.3) | -57.313 (0.3) | ||
| Proper motion (declination) | [mas/yr] | 0.13 (0.2) | 0.13 (0.2) | ||
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | |||||
| H magnitude | |||||
| K magnitude | |||||
| u magnitude | |||||
| g magnitude | |||||
| r magnitude | |||||
| i magnitude | |||||
| z magnitude | |||||
| G magnitude | 19.10 (0.004) | 19.10 | 19.10 (0.004) | ||
| BP magnitude | 19.24 (0.03) | ||||
| RP magnitude | 19.02 (0.05) | ||||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.021 | ||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.